Dipper for steam shovels and dredges.



a mum BIPPER FOR STEAM SHOVELS AND DBEDGES.

APPLICATION FILED FEB 27, 1913'.

Patented 00t.21,1913.

iflama,

WITNESSES C 39/4 I gaf/{z ma unrrnn COOLEY mum, on NEW. YORK, NQ'YQ mrrnn Ion seem emis Ann banners.

Zea-12:40am t-inay'eonceTnI Be'Yit knownthat 1," Goonsr Bn'rnnn', 'eitizen'of the: United States, and a resident of lie city of New York, borough of Man .hattangj 'in the county-and State-oi New:

lY-ork,:-havelinvented a new and 1m roved.

Dipper for-Steam Shovels and Dre ges, of.

which. the following is a. full,v clear,- and ex:

" act description,

"sol

diapers This invention reiafteslfto' excavating ordr'edging machiner. and has particuler'refi; l 'erenee to certain: etails 'ofx constmctionflin inner and outer fingers 22 and 23,

'saidfingers embracing'the inner and outer surfaces'of the lip front. yTh'e tooth is locked-to the dipper body in a rigid manner but with-the least possible number '.'of removable parts.

heprixnary object :of'the inventionzis to improve the form of. teeth as to the means- V them to Athe utting edge or front of thedippe'n;

"for securing the'invent-ion-is to-im' --prove thelocking-ineans-for the door. The -or1efioing'and other. object'softhe invention- 'wi U hereinafter be more fully 'described and. .claimed" and. illustrated in the drawings forming apart of-tliisspecifica tion; -in"' which like charaeters f'of reference a dipper having my improvements'embodie therem; Fig. 2-1sfa; plan view-of-the-same one tooth bein'g omitted Fig. 3 is a vertical sectional view onthe line' 33 of Fig.2;

fer;v relative sizesand-proportions thereof'may ofFi'g. 2.

Theseveral parts of this dipper may made of any suitable -materials, and the be varied" somewhat from thoseillustrated l' ithouii departiniefrom the irit f the i n ion -'hereina 140- r claimed.- i As shown, the dipper; comprises as usual, a 'front 10, 'a back 11, adoor 12, and a ball to. th e'bod' of the dipper bymeans of pivots Less lfifexten ing outwardly through the "bailand brackets;17;, At the lower end of the frontofthe dipper-is a projection 18 having ahole 18 therethrough, and the ends of the said p'rojection, extending laterally toward the sides of the dipper, a'rebeveled as shown at 19, said-beveled portions extending well outward toward, said sides. A'flockiqg bolt.

' prises a pair of flanges .24 which embrace indicate corresponding the views, 4

- ndFig'..:4= *is-a similar view on the line character-as or inaril made. At 27 I show a removablefastenerin the nature of a bolt 1101; thefinger through which this bolt orpin passes-are formed. as shown so' that the b'olt' H Specification of Iiettei'sPatent. vPatented Oct.21 ,1913. Application filed February 27,1913} serial No. 7150,9158. v

20'- movable; on'l'the outside or the. door" as" usual isadaPted to operatein said hole 18 tojlock the door'closedl- This. s cial form strength than usual, .and at the samejtime ment. Inthis connection each tooth comportion of. the'dipper The main securing means for such tooth ,com-

the inner finger 22 said flangesbein 'undercut'or dove-tailed as shown especia ly in Fig, 2, and a corresponding pair of flanges 25 -embra'cing' the outer-finger. The flanges .25 are connected by 'a.-rib 25 which constitutes' a. substantial abutmentfor. the tooth in addition to the ed e of the .'dipper :front.

The cutting edgea so, ofthe 'front portion of' the dipper -.pre ferab ly I notched, as shown at- 26, .to receive the body of eachv tooth." The notch'2 fi and the airs of flanges 'Q'fi'zind 25 on the opposite si es of the body structn-re provide. a substantial supportfor the tooth with respect to its-digging. opera! tions.

' In view, therefore, of the supporting means indlcated there isrequired -ver little-additional means to secureeach tooin'plaoe, as com ared with structures of this 1}. pin pass'in through the dipper front andthrough one nger 22-of the tooth.-. The bolt 1 27 is shown provided with a' nut-28 to hold it in place. The dipper front and the body or pin may bexsec'ured -in it's place fromeither the inside orthe outside-of the dip- ,per. This 'b0'lt serves to retain the tooth in place as indicated in Fig; 3. When, how. ever, it is required to renewa tooth, all'that ,isnecessary' is to remove. the bolt and slip the tooth out of place, when a new toot may be inserted and secured as -befcre,- a process requiring but'a small fraction of the amount of time 'usuallyvspent in removing teeth in dippers where ignany rivets or the like are used to secure the teeth in place.

Having thus described my invention, I

claiin as new and desire" to secure by Letters Patent:

1. The herein described dipper comprising a body having an edge notch and pairs of undercut flanges formed integrally on the inside and outside ofthe body structure, a-

its cutting edge with a series of notches and pairs of undercut integrahfianges adjacent said notches on the mside and outside th ereof, a series of detachable teeth, each teeth 1 adapted to be seated in a notch havingm' pair of fingers and embraced by said pairs transverse connecting rib servlng as an abutment for one of the fingers, and a single removable'member cooperating with the other finger and said body front serv'ing-topreof flanges, one pair of flanges having a vent outward longitudinal displacement of,

such tooth.

In testimony whereof I have signed my name-to this specification in the-presence of two subscribing witnesses.

COOLEY BUTLER.

Witnesses:

Geo. L.- BEELER, 'HARRY ScHRoEoER. 

